A soldering iron uses an electric current in a wire to heat, Ask an Expert

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A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides 55 W at an rms voltage of 28 V.

What is the resistance of the wire in the iron?

How many turns are in the primary coil?

What is the current in the primary coil?

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Category:- Physics
Reference No.:- M91022878

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